Fig. 6From: Regeneration of TiO2 Nanotube Arrays after Long-Term Cell and Tissue Culture for Multiple Use – an Environmental Scanning Electron Microscopy (ESEM) Survey of Adult Pig Retina and beyondESEM images of tissue residues on top a nanotubes array for step by step UV-light irradiation imaged at distinct times: 0 h, 1 h, 2 h, 3 h, 7 h and 15 h (a-f), respectively. Scale bars correspond to 50 μmBack to article page